Keisuke Saitoh defeated Masamichi Imamura 7-6 6-2 in the M15 Monastir 30 q16 on hard. The upset overturned the form book — Masamichi Imamura came in ranked #418, leading the head-to-head 2–1. Keisuke Saitoh narrowed the head-to-head to 2–2.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2025-09-10 | M25 Sapporo 2 | R32 | hard | Masamichi Imamura | 6-3 6-3 |
| 2025-08-19 | M25 Taipei 1 | R32 | hard | Masamichi Imamura | 6-3 6-4 |
| 2024-09-04 | M25 Sapporo 1 | R32 | hard | Keisuke Saitoh | 7-5 6-2 |
Averages over each player's completed matches in the selected window (23 vs 84). ATP, WTA & Challenger.
Imamura M.: 5 days rest · 3 matches, 59 games (7d). Higher means fresher. About
Each player's serve crossed against the other's return, converted to expected hold of serve. Recent completed matches, ATP, WTA & Challenger. About